Hub-attaching device.



Patented July 24, 1900. G. A. MAYER.

HUB ATTACHING DEVICE,

A iimion filed Feb. 3, 1900.

(No Model.)

l l l l I l i I l I I l ATZES PAT FFlCEt HUB-ATTACHING DEVICE.

SPECIFICATION forming part of Letters Patent N 0. 654,472, dated July 24, 1900.

' Application filed February 3,1900. Serial No. 3,877. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE A. MAYER, a citizen of the United States, residing at Home stead, county of Allegheny, State of Pennsylvania, have invented certain new and useful Improvements in Hub-Attaching Devices, of which the following is a specification.

This invention relates to hub-attaching de* vices.

My invention is designed particularly for use on the spindles of vehicle-axles for the purpose of retaining the wheel-hub thereon, although adaptable to other uses, the object being to provide an improved locking device of simple, strong, and durable construction which is adapted to be locked by a suitable key, and thus made to positively engage the nut and secure it rigidly on the spindle and prevent it from becoming loosened in any way by the action of the hub or to be unlocked to permit removal of the hub for inspection, lubrication, orrepairs.

The invention consists of certain improved features of construction and combinations of parts, more fully described hereinafter, and recited in the appended claims.

In the accompanying drawings, Figure l is a view in longitudinal section of a spindle equipped with my improvements; Fig. 2, a view of the locking and unlockingkey. Fig. 3 is an end view showing the nut partly in section and the retaining plate or washer broken away, with the latches in looking position; Fig. 4, a similar view,but with the latches retracted; Fig. 5, a perspective view of the end of the spindle; Fig. 6, detail views of the rocker-tumbler and a latch; Fig. 7, a detail view of the retaining plate or washer.

The spindle 1 is made hollow, as at 2, and its end is reduced and left blank at 3 to provide a shoulder 41. for the nut to abut. n the end of the spindle are lugs 5 and 6, disposed diametrically opposite each other and provided at one end with cam-shoulders 7, also disposed diametrically opposite each other. The inner faces 8 of the lugs are straight and preferably disposed in tangential relation to the circular bore 2, and the outer faces are provided with projections 5. There is a rocker-tumbler 9, having a cylindrical barrel 10, provided with a polygonalshaped key-opening l1, and arms 12 and 13 projecting from its opposite sides.

The numerals 14 and 15 designate duplicate latches, which are square in cross-section and are pivoted at one end to the respective arms 12 and 13 on pivots 16, the latches being cut away at 17, so that their ends can fit underneath the, arms and allow the outer faces of the latches to lie flush with the outer faces of the arms. The cylindrical barrel is of suitable size to fit snugly in the bore 2 in a manner to permit it to turn freely therein, while the arms and latches are free to play in the spaces intervening the lugs 5 and 6.

Acircular plate or washer 18 of the same diameter as the reduced end of the spindle and secured to the outer flat faces of the lugs by screws 19 holds the locking mechanism in position, while permitting it to turn.

The nut 20 fits snugly on the reduced end 3 of the spindle and against the shoulder 4, and it is provided with diametrically-disposed inclined apertures 21 and 22 of the same size and shape as the latches and adapted to snugly receive them when they are projected. It also has notches 20 to receive the projections 5.

The key23 has a square stem which is adapted for insertion through the hole in washerl8andintothekey-openingll. When the key is fitted into the cylindrical barrel and turned, the rocker-tumbler is made to turn in the spindle, whereupon the latches ll and are advanced, and being made to wipe against the cam-shoulders 7 on the lugs are positively guided into the apertures 21 and 22 in the nut until the arms'on the rockertumbler abut the faces 8,0f the lugs. The nut will then be firmly locked on the spindle, and the key can be withdrawn. A reverse movement of the key unlocks the not by withdrawing the latches from the apertures therein. This reverse movement of the rocker-tumbler is limited by the arms abutting faces 8. The provision of the notches and projections 5 insures the correct p0 sitioning of the nut on the spindle to receive the latches and takes the strain off the latter, while at the same time preventing any rotation of the nut.

Having thus described myinventiou, what I claim as new, and desire to secure by Letters Patent, is-

1. In a device of the class described, the combination with a spindle, of a nut thereon,

5 and a rocker-tumbler 'rockablymounted on the spindle, having pivoted latches adapted for engaging and locking the nut.

2. In a device of the class described, the combination with a spindle, of anut thereon, a rocker-tumbler rockably mounted on the spindle, latches pivoted to the rocker-tumbler adapted to engage and lock the nut, and guiding devices'on the spindle for guiding the movement of the latches.

3. In a device of the class described,-the

- combination with a spindle, of a-nut thereon, a rocker-tumbler rockably mounted on-the spindle, latches pivoted to the rocker-tumbler adapted to engage and lock the nut, and lugs on the spindle having cam-shoulders-against which the latches wipe when the tumbler is l--turned,whereby said latches are guided into and out of engagement with the nut.

41 -In a device of the class described, the combination with a spindle, of a nut thereon, a -rocker-tumbler rockably mounted on the spindleand having'arms, 1neans carried by the arms for engaging and locking the nut, -and lugs on the=spindle constituting abutments 'for the arms to limit their movements in both-directions.

5; In a -device'of the class described, the combination with a spindle, of a nut thereon, a rocker-tumbleron the spindle, latches pivotedto the rocker-tumbler and adapted to engage and lock the nut,.and lugs on the spin- ;dle which constitute ab utments for the rockerfcumbler tolimit its movements in both directions and against which the latches wipe whereby they are guided in their movements.

6; In adevice of the class described, the combination with a spindle, of a nut thereon havin-gtopenin gs therein,-a rocker-tumbler on the spindle, and latches pivoted tothe rocker- 45 tumbler which are adapted to enterthe openingsinthe nut when the tumbler is rocked in one direction and to retract from'said openings when itis rocked in the opposite direction.

7. In a device of the class described, the combination with a spindle, of a nut thereon havingopenings, a rocker-tumbler on the spindle having opposite arms, latches pivoted to the respective arms of the rocker-tumbler and adapted to enter the openings in the nut when the tumbler is rocked in one direction and to retract from them when it is rocked in the opposite direction, and oppositely-arranged lugs on the spindle which constitute limiting-abutments for the arms of the rockertumbler and between which said arms and the latches are adapted to play during their movements.

-8. In a device of the class described, the combination with a hollow spindle having a reduced end, of a nut fitted'over said reduced end and abutting the shoulder formed thereby, said nut 1 having openings, a -rocker-tumbler having acylindrical' barrel providedwith combination with a 1 spindle having projections thereon,'-of anut havingiopenings to receive, said projections, whereby the-=nut is locked against turning on said spindle,"-said nut also being provided w ith lat'ch-receiving openings, a rocker-tumbleron the-spindle, and latches on said tumbler adaptedforprojection' into the latch-"receivingopenings of I the nut.

In testimony whereof I hereunto affix my signature in presenceof two witnesses.

GEORGE'ArMAYER. Witnesses JEROME SULLIVAN, MICHAEL FISHER. 

